Updated openstack/openstack
Project: openstack-dev/devstack  3dc5a99e3710bc00e3fa58c0180992073e111b85
null
ironic: remove notifier_strategy option

This has never exited in Ironic, and it does not even uses notification.

Change-Id: I4a3d386116561d9a22d650f123df1aae5ed9849e